The Supergirl Constellation

"The Supergirl Constellation" from Supergirl vol.4 #51 (DC, 2000) by Peter David, Leonard Kirk and Robin Riggs

After decades of "writing Supergirl stories is too hard", leading to the character's death in Crisis following a movie appearance, Peter David finally had a hit with, well, not Kara Zor-El, but Linda Danvers at least. This was the Matrix Supergirl created by John Byrne, who had rebooted Superman to be the VERY last survivor of Krypton. I don't know if I have the capacity to explain this version without it sounding like a 90s X-Men comic, but basically, she's an artificial protoplasmic creature from a pocket universe Earth based on Lana Lang but having adopted the Supergirl identity. Under Peter David, she was fused with a dead teenager, bad girl Linda Danvers, and acquired angelic powers. The series has strong thematic underpinnings about identity and resurrection, which eventually, near the end of the 80-issue run, all by David, brings the "real" Supergirl (Kara) into the mix. It might just be one of the great comic book novels of the 90s (by which I mean huge runs by the same writer) and certainly the best sustained effort on a Supergirl title.